芝麻饼肥、秸秆还田与化肥配施条件下烤烟生长及品质表现

在等氮、磷、钾条件下 ,芝麻饼氮分别占 33.3% ,66.6%及芝麻饼氮占 66.6%加秸秆还田时 ,大田烤烟生长状况、烟叶化学成分与单施化肥相比无明显差异 ,化学成分均属于协调范围。秸秆还田有利于提高烟叶总糖和钾含量 ,降低烟碱和氯含量 ,改善烤烟品质 ,提高经济效益。

The Growth and Quality Performance of Flue-cured Tobacco under the Condition of Combining Application Sesame Cake and Crop Residues with Chemical Fertilizers

Under the condition of the same supply of N, P and K, non significant difference in growth status and main chemical constituents of flue-cured tobacco plants between the four treatments of sesame cake organic nitrogen accounting for about 33.3%,and 66.6%,respectively,sesame cake organic nitrogen accounting for about 66.6% + crop residues and unitary chemical fertilizer was found,the chemical composition of tobacco in each treatment was within harmonious range. Returning straw into tobacco field was beneficial to increase the total sugar and potassium content and decrease nicotine and chlorine content in tobacco leaves, which was helpful to improve the flue-cured tobacco quality and increase economic benefit.